Pressing machine



L. HOFFMAN PRESSING MACHINE Filed Oct. 5 1920 4 Sheets-Sheet 1 Way. 11, m4.

L{HOFFMAN PRESSING MACHINE .1920 4 Sheets-Sheet 2 Filed Oct. 5,

z m M a &6 V 5 7 w w W, 11 1924. mums L. HOFFMAN PRESSING MACHINE Filed Oct. 5, 1920 4 Sheets-Sheet 5 Hair. 11 1-924. 1,5149% L. HOFFMAN PRESSING MACHINE Filed Oct. 5, 1920 4 Sheets-Sheet 4 Iu en I)? Patented Nov. 11, 19240 "tip eraser orFicE.

LOUIS l-IOFFMAN, OF DULUTH, MINNESOTA, ASSIGNQZR, BY ZE'ZESNE ASSIGNMENTS, TO I STEAM PRESSING IRON COMPANY, -A"COBPORATION OF DELAWARE.

DRESSING MACHINE.

Application filed Octoberi, 1920.

To all whom it may concern.

Be it known that I, LoUis HOFFMAN, a citizen of the UnitedStates, residing at Duluth,3in.the countyof'St. Louis and State of Minnesota, have invented certain new and useful Improvements in Pressing Machines, of which the followingis a. specification.

My invention relates to a machine for messing garments of the type employing a heated flat iron or-.tailors goose, which is movably suspendedover the-table or buck on whichthergarments are placed. A ma, chine of this general character is shown in Patent No. 1,196,112,.granted to me on Angust 29, l91'6,-reissued as No. 14,590 on February .11, 1919,.andin Patent No. 1,404,859, granted to me Jan. 31, 1922.

One of the objects of the present invention is to make certain improvements upon thepressing machine: asshownand described in said patents, saidimprovements comprising the .provision ofa lock for holding the operating table or buck in elevated position against the pressing iron,.an in'iproved lockingmechanism for holding the buck against lateral movements, an. improved mechanism for raising andlowering the buck, and other improvements whereby the construction of the machine is simplified and its operation facilitated.

A further object isto provide the machine, for certain operations, with a buck or pressing table or board of improved construction having a duct whereby the same may be heated by circulation of steam.

llhe invention is illustrated, incertainpreferred en'ibodiments, in the accompanying drawings wherein- Fig. 1 is a front elevation of a pressing machine constructed in accordance with myinvention, a portion of the machine being broken away and part being shown in section.

"Fig. 2 is .a 'fmginentary view taken on thesection line shown on Fig. 1, looking in the directionof the arrows designated 2-2.

'3 is an inverted sectional plan on line 33 of Fig. 1. I

Fig. 4 .is an inverted plan view of the steamheated buck.

Fig. 5 is aplan view of the machine.

v6 is a partial vertical sectional view Serial No. 414,720.

on the section line of Fig. 1, looking in the direction ofarrows 6-6.

Fig. 7 is a sectional view on line 7- of Fig. 6.

Fi 8 is a fra ment-a1 view in )ers Jere- L s y 7 1 l tive, of part of the operating treadle.

Fig. 9 is a view, in perspective, of the collar onthe rock shaft of the machine by means of which-the treadle is adjustablyengaged with the rock shaft.

Fig. 10 is an inverted plan view of'the parts illustrated in Figs. 8 and 9 shown as assembled with the rock shaft.

I Fig. 1-1 is a fragmentary planview illustrating the :mechanism for holding the buck against lateral movement, and

Fig. 12 is an end elevation of the parts shown in Fig. 11.

Like charactersof reference'designate like partsin the several figures of the drawings.

Referring to thedrawings, designates the base portion ofithe "frame of the machine on which is supported, on uprights 26 fixed in. sockets 27 on the base a rectangular structure consistingof a pair'of inwardly facing channel irons 28 connected by end pieces 29,:the structure being braced by bracing members 30, 31. A laterally IIIOVlIlgflflT- ria'ge composed of inwardly facing'channel irons 32 andendpieces 38 is provided with rollers 34 which operate in grooves 85 formed in the horizontal webs of the'channel members 28. Asecond carriage 36, providedwith rollers 37, is mounted so as to move forwardly and backwardly on the track provided by the channel members 32. The carriage 36 supports a rod 38 secured in a split sleeve 39 on the carriage and clamped thereto by a screw 40 which has pivoted thereto a handle 41. On the lower end of the rod 38 Visa ball 42 whichenters socket--43 formed in the top portion of the what iron-44. .The latter i'sprovided with ahandle 45 and is adapted to move in all directions over the press-ing buckortable-46.

The-buck or board '46 is preferably made of cast iron or other metal and is formed with a duct for circulationofi-steam for'the purpose of heating the buck. The steam due-tin thebuck is preferably made bycasting a pipe coil47 into the same, the ends of whichcoil project from the castingand are connected one with a flexible tube 48 for introduction of steam to the coil, and the other with a flexible tube L9 for discharge of steam or water of condensation therefrom. The buck may be covered with a suitable cloth 50. Secured to the under side of the buck is a T-iron 51, the depending web of which fits into a groove in a saddle casting 52 secured to a carriage 53, the buck being clamped to the saddle casting by means of a clamping strap bolts 55 and nuts 56.

The carriage is provided with rollers 57 which move in a. track formed of a pair of channel irons 58, the horizontal webs of which are preferably grooved to guide the rollers, these channel irons being secured to upstanding webs 59 on a pair of vertically movable upright members 60 arranged adjacent to upright members 6i on the base frame 25 of the machine. By the means just described the buck can be given lateral movements with respect to the machine, because of the capacity for movement of carriage 53 on the track 58, and can be raised vertically with the track in order that the work may be brought up against the iron. The buck is moved laterally by hand. It is raised by means of a treadle 62 and certain mechanism which will now be described. The treadle comprises a lever 63, the inner end of which is forked as shown at 64 (Fig. 8) and is provided with a pair of arcuate bearings 65 adapted to engage with a rock shaft 66 mounted in bearings 67 in the base frame of the machine. 68 (Fig. 9) is a collar fastened to rock shaft 66 between the forked ends of the treadle lever 63, the collar being formed with a lug 69 having threaded opening for a set screw 70, the end of which is adapted to bear against the treadle lever 63. 71 is a lock nut to hold the set screw at any desired position, the set screw being adjustable for the purpose of varying the initial or normal position of the treadle for operators of different height. Secured to each end of rock shaft 66 is an arm 72 adapted to bear against one end of a lever 73 pivoted at 7e to the base frame of the machine. The other end of lever 78 bears against a roller 75 (Fig. 7) on a. shaft 76 which is secured adjustably to the forked end. 77 of one of the upright members 60 supporting the track on which the buck carriage runs. The upright members 60 are formed near opposite ends with guide slots 78. 79 through which project studs 80, 81 secured to the frame members 61,,spacing washers 82 intervening between the movable members 60 and the frame members 61. Springs 83 are secured to each of the studs 81 and to studs 84 fixed to the movable members 60. These springs are stressed when the treadle is operated to raise the buck so that they return the buck to normal position when the treadle is released. If the buck should outweigh the treadle mechanism the springs should be arranged so as to be under tension when the buck is down, thereby counterbalancing the same as it is raised.

Under some circumstances, where the nature of the pressing operation is such that the operator has suliicient time to operate several machines, it is desirable to lock the buck in elevated position against the iron. The operator after so locking one machine is free to operate others in the same manner before returning to the first machine. Inasmuch as the iron is steam heated, there is no danger of burning the fabric which is being pressed. For this purpose I provide a locking device associated with and operable in connection with the treadle. 85 (Fig. 2) is a member pivoted between ears 86 formed on the treadle lever 63, the upper end of said member being curved backwardly and formed with teeth 87 which are adapted to engage with the lower edge of a transverse member 88 of the base frame of the machine. The member 85 has alug 89 adapted to bear against the treadle to limit the backward movement of said member. 90 is another member pivoted between ears 86 having a foot piece 91 and provided with a stud 92 adapted to bear against member 85. 93 is a heavy spring extending from member 90 to member 85. 94: is a lighter spring connecting member 85 with the treadle. When the treadle 62 is operated without depressing foot piece 91. to raise and lower the buck, the toothed portion 87 of member 85 clears the cross piece 8. If. however, the foot piece is depressed, member 85 will be pulled forwardly, spring 94 being lighter than spring 93. and the teeth 87 ofineml'm- 85 will engage the cross piece 88 as soon as the operator takes his foot from the foot piece 91. To actuate the footpiece 9!, as the treadle 62 is operated, the operator might place the heel of the shoe on the troadle 62 and the sole on the footpiece 91 until the treadle had been depressed sufficiently whereupon the foot of the operator might be moved so as to clear the footpicce 91 while still holding down the treadle To release the lock the operator presses down on treadle 62. This disengages the teeth 87 from the cross piece and spring 94 reacts to return the parts the locking necha nism to their normal position The carriage normally held from lateral movement on the rails by a preferably friction operating holding mechanism which is released when the carriage is to be moved. This mechanism is shown in detail in Figs. 2. 3. 11 and 12. Secured to the under side of rails 58 is a cross piece 95 formed with a perforated boss 96 for a. stud 97 formed with a circular head 98 to which are pivoted on oppositely disposed studs 99 a pair of pins 100 which are guided i ibuek may be held,

:inilugs llfllttormed on a the cross piece {95, -t-l1e extre1nitie$rof -the pins-i being pre terably beveled and engaging 4 depending xWGlJS '102 on the carriage I 53. 5108 isxa. lever provided laat 'its,- outerend with-a knee :pad 104, the inner :end of the lever extending through stud'ztll' and through a collar 105-:thereon and held :in I place 1 by :;a setserew 106. 107 :is ga' spring ifastenedetoiastud 108 on the :lever 5103' and -tovaestud 109 on the :foravard channel ibar rail 58. i ms sp-ring tends to rotate stud 97 in the direction to foreethe :pins 100- against the webs 102 :on 1 the cars-riage. The: operator, by pressing his right iknee :against the {knee pad 104- and anoving the :;same rtol the right Withdraw-s Y the :pins 100 rotit -ofoontaet :with said .WGbS so that v by movement of the buck the portion of the garmentrto be pressedrmay bebrought to a nonsenient position-yin tnoint of the operator. Thereupongthe iknee-pad is released and 1 the oarri age lockedin this rpio ti 'on.

Themperation of :the maehine "is as follows: Ihe igarment :130" be pressed is placed -uponrthe wbuok.-:r 4;6; 'iWll'iQll may or may not .'=-be-stean1 lreate'dfas desired. (Tillie-operator @oan earry 5011' the pressing operation while vseated. To'bringrthe-Work before him the openator presses his might knee against the ikneeipadilOi,imoving-it toithe right and releasing carriage 53 from {the hold lot the looking pins 100.- xVVhen i thexwork has been properly positioned the operator moves his vknee-ctrom thei-lrnee pad JOtand't-he pins 100i engageithe dependingiflanges 102 ofthe carriageiso aswto hold the carriage and book in a stationaryiposition'. The :buok is then raised, --byipressingwdownaoir treadle 62 until the aWOFk llS brought against the iron 44.

i0 The iron can be moved in any:direction-over zt-he g garment by means of :ltS'i handle 45. At the same :time the'pressure'of the ;iron1,on the Work may be increased to *the desired extent :by "depression of tl'eadle -62; fl-he if need :be for the purpose :above noted, :by' engagement I ofithe looking rack 87 with the GFOSSZ bar-88 0 f theframe of the maohine through depression of the foot operated imember 90. Depression of the treadle 62 will release the look when thekbuck 7 is to be lowered.

I elaim: l. Arpressing iriaehfi r omprising'aframe, -5 a11- ironing board on said 'frmne, an iron supported fizom; sai d-ff-ramea ndtmovable in a plane parallel with the face of said board, means comprising a foot lever for the iron and the board into operative contact With each other, locking means for holding said iron and said board in operative pressing relation, and a second foot lever adapted by a downward stroke to move said locking means into operative locking position.

'means comprisinga foot in its elevated position bringing "an ironing board on -sai.d ifra me, an iron supported from said'irameand movable in a pianeparallel with the fiaee OffSEllddlOil'l'd. lever for bringing the iron and theboard into openativeeontact With each other; locking;mean's forhoiding said iron and said-board in operative pressing relation, yielding means serving normally to hold said lockingmeans outrof operative position and otherrmeans for-moving said locking meansagamst the action of: said yielding means into operativexloekingrpositiom said: locking 'means; being held automatically in continued looking position untih released by 'further downward; pressure upon, said footilever.

3. repressing; machine compris ngaframe, an ironing board on said fr-ame,:-an lroirsupported from said frame and imovable' in a plane parallel with-the faceuo'f said board, means comprising i a 1-foot lever for bringing the =iron andthe "board into operative eon- :taet with each otheig a ra-ekpivotally mount- ;ed on said foot lever "and adapted by operative engagement with a part of said frame to 'hold the -1I'OI1 and .the board in operative pressing relatiom yielding' means serving normally tOl10ld'.-StlCl, raek out :of operative engagementwiththeframe, and a second foot :lever for moving said rack against theaction of said yielding means into operative lockingposition.

4. Inra pressing machine, I the combination of a frame, supporting means tor the avork, a :pressing implement movab-ly supported oversaid supportingineans, meo'lianism for raising andlowering said supportingmeans comprising a treadle, rack pivoted to 'the treadle'and adapted to the 'ma'ohin'e to hold the supporting means engage the frame of in e levated position, and 'a footoperated device pivoted'to the treadle to"bring about 7 said engagement.

5. In apressing machine the-combination of a frame, supporting/means for=the Work,

a pressing implement movably supported over'said supporting means, mechanism for raising and loweringsaid supporti means comprising a treadlepa rackpivoted to the treadle and adapted'to en'ga-getheframe of the IHH Ch'IHGT/O hold the supportingmeans in elevated :position; foot operated device pivoted to the treadlei a 'heavy spring coir neoti'ng'thef foot ope-rated device to the rack, and a lighter spring connectingth'e rack :witlr the tread'l'e for the purp'ose described.

*6. In a pre's'singmachine, the combination of a frame, supporting means for the work, a pressing implement movably supported over said supporting means, a treadle, the depression of which raises said supporting means, a counterbalancing spring associated With the treadle a segmental rack pivoted to the treadle adapted to engage the frame so fright members,

of the machine to hold the supporting means in elevated position, a foot operated device pivoted to the treadle, a heavy spring connecting the rack with the foot operated device, a lighter spring connecting the rack with the treadle, and stops to limit the movements of the rack.

7. In a pressing machine, the combination of aframe, supporting means for the work, a pressing implement movably supported over said supporting means, a rock shaft in the lower part of the frame. an arm thereon, a lever pivoted to the frame and engaged by said arm, the other end of the lever being arranged to lift thesupporting means, a treadle to operate the rock shaft, and a counterbalancing spring arranged to facilitate the movement of the supporting means.

8. In a pressing machine, the combination of a frame, supporting means for the work, a pressing implement movably sup ported over said supporting means, a rock shaft in the lower part of the frame, an arm thereon, a lever pivoted to the frame and engaged by said arm, the other end of the lever being arranged to lift the supporting means, a counterbalancing spring arranged to facilitate the movement of the supporting means, a treadle to operate the rock shaft, and adjusting means between the shaft and treadle to adjust the normal angular positionof the latter.

9. In a pressing machine, the combination of a frame, supporting means for the work, a pressing implement movably supported over said supporting means, a. rock shaft in the lower part of the frame. an arm thereon, a lever pivoted to the frame and engaged by said arm, the other end of the lever being arranged to lift the supporting means, a eounterbalancing spring to facilitater the movement of said supporting means, a treadle having a bearing to engage the rock shaft, a collar on the shaft having a lug, and a set screw in the lug to engage the treadle.

10. In a pressing machine, the combination of a frame comprising a pair of up supporting means for the work comprising movable upright members lying along the upright frame members, a pressing implement movably supported over said supporting means,v a treadle, means associated with the treadle for engaging the movable upright members to raise the same, and springs interposed between and connected with said upright frame members and the movable upright members adapted substantially to balance the supporting means and the treadle.

11. In a pressing machine, the combination of a frame, a track laterally extending with respect to the frame, a support for the work movable on said track, frictionally operating means for holding the supporting means in rigid position with respect to the track, and a lever adapted by an operative stroke to release said holding means.

12. In a pressing machine, the combination of a frame, a track laterally extending with. respect to the frame, a support for the work movable on said track. means having frictional engagement with said supporting means for holding the same against such movement, and means com prising a member positioned to be controlled by the knee of the operator for releasing said holding means.

18. In a pressing machine, the combination. of a frame, a track laterally extending with respect to the frame, a support for the work movable on said track, a rotatable element on the track, a member pivoted thereto and guided to engage said supporting means, a lever to rotate said element, and a spring to return the same to normal position.

14. In a pressing machine, the combination of a frame, a track laterally extending with respect to the frame, a support for the work movable on said track, a rotatable element on the track, a pair of members pivoted thereto, and guided to engage said supporting means to hold the same in fixed position, and means for rotating said rotatable element.

15. In a pressing machine, the combination of a frame, a track guided so as to have vertical movement on the frame, a carriage on the track, a rotatable element on the track, a pair of members pivoted to opposite sides of the rotatable element, a guide to engage the carriage, and a lever fixed to the rotatable element for turning the same.

16. In a pressing machine, the combination of a frame, a track guided so as to have vertical movement on the frame, a treadle and mechanism operated thereby to raise and lower the track, a carriage on the track, a buck, and means for removably attaching the buck to said carriage.

LOU IS HOFFMAN 

